Granted Patent
Utility
US 4,486,707 · App. 06/423,399
Gain switching device with reduced error for watt meter
Inventors:
Bruce Randall, Jay K. Marshall
Patented Case
View Patent ↗
Granted: Dec 4, 1984
Filed: Sep 24, 1982
Inventors
Bruce Randall
Jay K. Marshall
Assignee (at issue)
Sangamo Weston, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.